Dubbed the Herrera style by Charles Oman, in honor of the architect of El Escorial, Spanish silver of the early 17th century is characterized by its boldness of execution, relying on simplicity of line rather than ornamentation. Decoration is restricted to flat-chased panels of restrained arabesques and applied enamel bosses. The style of the enamelling around the rim is unusual in Spanish silver but is similar to that found on a parcel-gilt chalice dating from the third quarter of the 16th century illustrated in Silver at Partridge: Recent Acquisitions, October, 1991, no. 3, where Timothy Schroder in his catalogue entry notes that similar decoration is found on Spanish jewelry of that date. Similar enamelling is found on Augsburg pieces of the period and it is tempting to suggest that these examples show the influence of one of the many German craftsmen who emigrated to Spain under Philip II.